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The F-35 was the product of the Joint Strike Fighter (JSF) program, which was the merger of various combat aircraft programs from the 1980s and 1990s. One progenitor program was the Defense Advanced Research Projects Agency (DARPA) Advanced Short Take-Off/Vertical Landing (ASTOVL) which ran from 1983 to 1994; ASTOVL aimed to develop a Harrier jump jet replacement for the U.S. Marine Corps ...
Lockheed Martin F-35 Lightning II development started in 1995 with the origins of the Joint Strike Fighter program and culminated in the completion of operational testing and start of full-rate production in 2021. [6] The X-35 first flew on 24 October 2000 and the F-35A on 15 December 2006.
Train with model Southern Railway Schools class. Triple-gauge pointwork ( 3 + 1 ⁄ 2 in, 5 in, and 7 + 1 ⁄ 4 in) on the Orchid Line . The upper right branch does not include the 3 + 1 ⁄ 2 in gauge.
F-number: f/10: ISO speed rating: 250: Date and time of data generation: 22:03, 21 January 2012: Lens focal length: 400 mm: Source: Digital: Headline: 33rd FTS, F-35 Training: Image title: An U.S. Air Force pilot waits in the cockpit of an F-35 Lightning II during a hot refuel on Eglin Air Force Base, Fla., Dec. 12, 2013.
Lockheed Martin X-35; Usage on ru.wikipedia.org F-35; Usage on sh.wikipedia.org F-35 Lightning II; Usage on sk.wikipedia.org Lockheed Martin F-35 Lightning II; Usage on sl.wikipedia.org Rolls-Royce plc; Pratt & Whitney F135; Rolls-Royce LiftSystem; Usage on sr.wikipedia.org F-35 лајтнинг II; Usage on tr.wikipedia.org Lockheed Martin F ...
The Lockheed Martin F-35 Lightning II is a family of stealth multirole fighters that first entered service with the United States in 2015. The aircraft has been ordered by program partner nations, including the United Kingdom, Italy, Norway, and Australia, and also through the Department of Defense's Foreign Military Sales program, including Japan, South Korea, and Israel.
A railway track (British English and UIC terminology) or railroad track (American English), also known as a train track or permanent way (often "perway" [1] in Australia or "P Way" in Britain [2] and India), is the structure on a railway or railroad consisting of the rails, fasteners, railroad ties (sleepers, British English) and ballast (or ...
The American gauges converged, as the advantages of equipment interchange became increasingly apparent. Notably, all the 5 ft (1,524 mm) broad gauge track in the South was converted to "almost standard" gauge 4 ft 9 in (1,448 mm) over the course of two days beginning on 31 May 1886. [21] See Track gauge in the United States.